A card reader is provided with a card locking device preventing a card
shaped medium from pulling out for illegal taking-out The card locking
device includes a lock member which is turnably supported and provided
with an engaging part so as to abut with the surface of the card shaped
medium and a movable member which is connected to the lock member and is
reciprocally movable in a direction to the card insertion port. The
movable member turns the lock member around the support shaft pin such
that the engaging part abuts with the card shaped medium to lock the card
shaped medium. The engaging part may be constructed by a plurality of
plate members whose thicknesses are different is laminated in a width
direction of the card shaped medium.